Table 1. Patient characteristics.

Case	Gender	Age (years)	Location	Histology†	Survival (months)	GFAP*	NeuN*	Synaptophysin*	Ki-67*	Ini1*	β-catenin
1	Female	2	Frontal lobe bilateral	CNS PNET, NOS	Died (21)	0	0	100	75	100	Cytoplasmic
2	Female	2	Insula left	CNS PNET, NOS	Died (2)	<1	0	90	50	100	Cytoplasmic
3	Female	2	Frontal-temporal lobe right	CNS PNET, NOS	Died (10)	0	0	<1	95	100	Cytoplasmic
4	Male	9	Frontal lobe right	CNS PNET, NOS	Died (5)	<1	0	90	65	100	Cytoplasmic
5	Female	17	Frontal lobe/ regio pinealis	CNS PNET, pineoblastoma	Alive (50)	0	0	100	10	100	Cytoplasmic
6	Female	7	Parieto-ocipital lobe right	CNS PNET, Ependymoblastoma	Died (25)	40	5	30	5	100	Cytoplasmic
7	Female	2	Insula left	CNS PNET, Ependymoblastoma	Died (4)	75	<1	0	75	100	Cytoplasmic

^†Tumors were reclassified according to the 4^th edition of the WHO classification of tumors of the central nervous system.

*Values are displayed as percentage positive tumor cells.